Area Unit Converter
| Unit | Converted value |
|---|
Conversion reference
| 1 unit of… | Square feet | Square metres | Square yards |
|---|---|---|---|
| Square foot | 1 | 0.0929 | 0.1111 |
| Square yard (gaj) | 9 | 0.8361 | 1 |
| Square metre | 10.7639 | 1 | 1.1960 |
| Marla (Haryana) | 272.25 | 25.29 | 30.25 |
| Kanal | 5,445 | 505.86 | 605 |
| Bigha (Haryana / Delhi) | 27,225 | 2,529.29 | 3,025 |
| Acre | 43,560 | 4,046.86 | 4,840 |
| Hectare | 107,639 | 10,000 | 11,959.9 |
Why NCR uses so many units at once
A single Gurgaon transaction can involve four different units. The developer's brochure quotes super area in square feet. The RERA registration quotes carpet area in square metres, because the Real Estate (Regulation and Development) Act mandates metric. The plot beneath the project is measured in acres in the licence, and if you are buying an independent floor or plot, the broker will quote it in gaj — the colloquial name for a square yard, still standard for Delhi and Haryana plotted development. Older Haryana land records add marla, kanal and bigha, all of which are derived from the same 272.25 sq.ft. marla base in this region but mean different things in Punjab, Rajasthan and UP.
Carpet, built-up and super area — the difference that costs money
Converting units is arithmetic; converting area definitions is where buyers lose lakhs. Carpet area is the net usable floor area within the internal walls, excluding the balcony and shafts — the figure RERA forces developers to declare and the only one that is comparable across projects. Built-up area adds wall thickness and balcony, typically 10–15% more than carpet. Super area (also called saleable or salable area) loads a share of lobbies, staircases, lifts, clubhouse and sometimes even the podium, which in NCR premium projects means a 25–40% addition over carpet. A "2,000 sq.ft." apartment advertised on super area may deliver only 1,300–1,450 sq.ft. of carpet. Always ask for the loading percentage and compute the effective price per carpet square foot before comparing two projects.
Common conversions worth memorising
A 200 gaj plot in Sector 57 is 1,800 sq.ft. — roughly 167.2 sq.m. A RERA filing showing 111.48 sq.m. carpet is exactly 1,200 sq.ft. A one-acre group housing parcel is 43,560 sq.ft., which at a 3.5 FAR permits roughly 152,000 sq.ft. of saleable construction. A 500 sq.yd. Delhi plot is 4,500 sq.ft. or about 418 sq.m. Getting comfortable with these three or four anchors makes it much harder for a mis-stated brochure figure to slip past you.
Before you sign
Check that the carpet area in the builder-buyer agreement matches the carpet area in the RERA registration for that tower and phase — discrepancies are the single most common source of possession-stage disputes. Under RERA, if the delivered carpet area falls short of the agreed figure, the developer must refund the excess consideration with interest within 45 days. Use our stamp duty calculator for the registration cost on the agreed value, and read the RERA verification guide to check any project's declared areas yourself.
Good to know
Area & Measurement Questions
1 gaj = 1 square yard = 9 square feet. A "200 gaj plot", common in NCR listings, is therefore 1,800 sq.ft. (about 167.2 sq.m.).
Multiply by 10.764. RERA filings quote carpet area in square metres, so a 111.48 sq.m. carpet-area flat is exactly 1,200 sq.ft.
Carpet area is the usable floor area within walls (the RERA-mandated figure). Built-up adds wall thickness and balconies (roughly +10–15%). Super/saleable area further loads common areas like lobbies and clubhouse (often +25–40% over carpet). Always compare projects on carpet area.
1 acre = 4,840 sq.yd. = 43,560 sq.ft. ≈ 4,046.86 sq.m. Land parcels in NCR are commonly quoted in acres for group housing and in sq.yd. (gaj) for plots.
Unsure what you are actually being sold?
Send us a brochure or RERA number — we will tell you the real carpet area and loading percentage.